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Finding the Fourth Proportional to 111,209.08, 153,471.10 and 63,466.88

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Solution

The fourth proportional to 111,209.08, 153,471.10 and 63,466.88 is: 87,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,209.08 : 153,471.10 = 63,466.88 : x
  2. Step 2: Convert to fraction form
    111,209.08/153,471.10 = 63,466.88/x
  3. Step 3: Cross multiply
    111,209.08x = 153,471.10 × 63,466.88
  4. Step 4: Simplify right side
    111,209.08x = 9,740,331,887.17
  5. Step 5: Solve for x
    x = 9,740,331,887.17/111,209.08
  6. Step 6: Final answer
    x = 87,585.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.